Indiana HVAC Guide

HVAC Service in Indiana

Licensed HVAC contractors across every county in Indiana.

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Two-story house with light gray vinyl siding, gray shingled roof, attached two-car garage and a concrete driveway, flanked by mown lawn and young deciduous trees under an overcast sky.

What Indiana homes are up against.

7,4897,489 severe weather events were recorded in Indiana between 2015 and 2024.
2,976,568Indiana holds 2,976,568 housing units (2020-2024 ACS 5-year).
1976Half the homes in Indiana were built in 1976 or earlier (2020-2024 ACS 5-year).
241Allen County carries the heaviest storm record in Indiana, with 241 events between 2015 and 2024.

NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31. · U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates

Snow on a roof edge with a row of icicles hanging from the white gutter and soffit above a red brick wall, against an overcast sky.

A furnace here does not get long stretches of rest. Homes in Indiana run heat about eight months a year, from October through May. That kind of runtime puts steady demand on the heat exchanger and the ignition system, the parts that cycle every time the burner fires. A cracked exchanger or a failing igniter tends to surface during those months rather than sitting quiet until spring. The short window when the system sits idle is brief enough that small faults carry over instead of resetting. A hard start or a burning smell on a cold morning usually points to wear that built up over the weeks before it.

NOAA National Centers for Environmental Information, nClimDiv county and statewide normals, 1991-2020.
Unfinished basement with concrete block walls and a bare concrete floor, insulated metal ductwork running beneath exposed wood floor joists, a coiled flexible hose and two cardboard boxes on the floor.

Before a contractor can quote new equipment, someone has to open the panel and trace the ductwork to see what is actually there. A breaker box may or may not carry enough capacity for a heat pump. A duct run may or may not be sealed well enough to move the air a new furnace expects to push. None of that shows up from the street, and none of it can be assumed from a listing photo. Half the homes in Indiana were built in 1976 or earlier (2020-2024 ACS 5-year). That is why a walk-through comes before a number, not after it, in a home anywhere in the state.

U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates

Does where you live in Indiana put extra strain on your HVAC system?

Severe weather events by county — Indiana
Allen County241
St. Joseph County233
Marion County227
Elkhart County183
Lake County175
Vanderburgh County148
Porter County145
Huntington County144
Kosciusko County141
Ripley County141

2015–2024 · Source: NOAA National Centers for Environmental Information, Storm Events Database.

FIND YOUR COUNTY'S RANK

The outdoor unit takes the brunt of whatever weather passes through. Wind can rock a condenser on its pad, hail can dent the cabinet and bend the fins that move air across the coil, and heavy rain can work into the electrical connections if the unit isn't sealed the way it should be. If your county sits high on this list, have a contractor check where the unit sits, how well it's anchored, and the condition of the cabinet itself.

In Indiana, HVAC licensing for homes is left to the counties and cities.

Check whether your county requires a license.

Sources: Indiana Department of Workforce Development · State of Indiana

Find HVAC coverage in your part of Indiana

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Furnace vs Boiler

Heat pump vs Furnace